Powerflex Black Series PFF5-401G Caster Adjustable Front Arm Rear Bush - BMW 1 Series E81 E82 E87 E88 & 3 Series E90 E91 E92 E93 - 95A Polyurethane Lollipop/Wishbone/Radius/Control Arm Tension Strut to Chassis Bushing

BMW E8x E9x Caster-Adjustable Front Arm Rear Bush Kit – Powerflex PFF5-401G

Transform steering precision, straight-line stability and braking confidence with this premium polyurethane bushing kit. Powerflex PFF5-401G replaces the soft, ageing factory rubber at the rear of the front wishbone, giving your BMW 1 Series E81 E82 E87 E88 and 3 Series E90 E91 E92 E93 tighter geometry control for fast road and track day use.

Built in 95 Shore A Black Series polyurethane with robust steel outer shells and an offset stainless sleeve, this caster-adjustable solution slashes bush movement and keeps alignment consistent under load. The on-car adjustment range of approximately ±0.75 degrees lets you dial in extra stability and improved mid-corner camber gain, sharpening turn-in and reducing tramlining and brake shimmy.

We fit these on our own builds and customer cars and the feedback is consistently brilliant. Expect crisper steering, better tyre contact and a front end that feels planted on B-roads and at the circuit.

Why upgrade to Powerflex PFF5-401G

• Part number: PFF5-401G
• Caster fine-tuning on the vehicle for precise geometry setup
• High-durometer polyurethane for maximum control and durability
• Steel outer shells to handle heavy loads and extend service life
• Offset CNC-machined stainless sleeve with supplied spanner for easy adjustment
• Reduces deflection to cut tramlining and improve braking stability
• Sharper turn-in, improved camber characteristics and high-speed confidence
• Ideal fast-road and track upgrade for E8x and E9x platform cars
• Also referred to as wishbone rear bush, front arm rear mount, caster bush, alignment bush

What you get

• 2 x bushes with steel shells and offset stainless sleeves
• Adjustment spanner

Two bushes required per vehicle.

Direct replacement for OEM numbers

• 31120393540
• 31126763719
• 31102283579

Vehicle fitment

BMW 1 Series E81 E82 E87 E88

BMW 3 Series E90 E91 E92 E93

Fitting and alignment

Professional installation recommended. For supply and fitting, contact MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.

Compatibility check before dispatch

To ensure the correct part, add your UK registration or the last 7 digits of your VIN at checkout and we will verify fitment.

Brand

Powerflex

Part number

PFF5-401G

Images

Installed photos

Search-friendly terms

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